Which of these is a pythagorean triple? will mark brainliest

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

X2 + y 2 = 36 x + y = 6 solve the system of equations.

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'